CN203148637U - Device detecting leakage, blockage and damaged filtering membrane of transfusion system - Google Patents
Device detecting leakage, blockage and damaged filtering membrane of transfusion system Download PDFInfo
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- CN203148637U CN203148637U CN 201320117184 CN201320117184U CN203148637U CN 203148637 U CN203148637 U CN 203148637U CN 201320117184 CN201320117184 CN 201320117184 CN 201320117184 U CN201320117184 U CN 201320117184U CN 203148637 U CN203148637 U CN 203148637U
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- filtering membrane
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- transfusion device
- compressed gas
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Abstract
The utility model relates to a device detecting leakage, blockage and damaged filtering membranes of a transfusion system, which belongs to the medical instrument blockage and leakage detection technical field. The device detecting leakage, blockage and damaged filtering membranes of the transfusion system comprises a compressed gas source (6). The device is characterized in that the compressed gas source (6) is communicated with a group of pressure-reducing valves (2) which are in parallel connection; each pressure-reducing valve (2) is communicated with one corresponding pressure sensor (4); each pressure sensor (4) is communicated with one corresponding gas outlet (1); the pressure sensors (4) make detected pressure transmitted to an external data acquisition facility; the compressed gas source is further communicated with a solenoid valve (5); the solenoid valve (5) is connected with a clamping device (7); and the clamping device (7) can make the transfusion system clamped or loosened.
Description
Technical field
The utility model relates to a kind of transfusion device and leaks hunting, surveys device stifled, the breakage of survey filtering membrane, belongs to the stifled technical field of leaking hunting of medicine equipment inspection.
Background technology
Transfusion device belongs to medicine equipment commonly used, its synoptic diagram is seen Fig. 1, transfusion device is when manufacturing, need detect its impermeability, test item comprises whether whether liquid-transport pipe-line leaks, filters mould 3 is blocked, and filtering membrane 3 plays the air inlet effect, can prevent simultaneously that liquid from flowing out, and plays the effect of gas-liquid filteration.The mode for the water inspection that existing method of testing has namely pours pressurized air, immerses then in the water, detects by the mode of observing bubble, and this detection mode poor effect causes careless omission easily.Application number is 201110377352.5, date of publication is the survey block apparatus that leaks hunting that the Chinese utility model patent on June 13rd, 2012 discloses a kind of transfusion device, when this device leaks hunting, by transfusion device is inflated, be equipped with tensimeter simultaneously, by clamping woven hose near an end of filtering membrane 3, measure manometric indicating value, by digital-to-analog conversion the pressure data of gathering is converted to digital signal again and directly reads by display screen, judge whether to leak by force value; When whether this device to test filtering membrane stops up, decontrol the clamp device of woven hose, gas outwards spills from filtering membrane 3, and according to the drop-out value of internal gas pressure in a flash, namely whether pressure reduction is up to standard, judges whether filtering membrane or pipeline stop up.
One of drawback of this proving installation is: owing to be by unclamping the pressure reduction that clamp device forms moment, can't set a upper limit to pressure, can only the set pressure lower limit, and namely, when pressure reduction during greater than certain pressure, namely be considered to filtering membrane and do not stop up, be certified products.Whether can't measure filtering membrane 3 and break, transfusion device plastics pin drowning lid yet monitoring, because filtering membrane is when damaged, pressure reduction one reaches the required value of setting surely, thereby is considered to certified products if not coming out.And if the filtering membrane breakage can cause impurity such as bacterium and dust to enter transfusion device, thereby bring infringement for patient's life and health, simultaneously, breaking of filtering membrane also can cause the leakage of liquid medicine, influences normal infusion.
Second drawback of this proving installation is: it is too low that filtering membrane is surveyed stifled precision.Existing transfusion device pick-up unit is only once inflated transfusion device, earlier infusion pipeline is leaked hunting, unclamp the clamp device of woven hose then, it is exitted naturally, only measure flashy pressure reduction, the big phenomenon of pressure surge scope can occur, especially when the volume of transfusion device inside is big, pressure surge is more severe, causes testing result inaccurate.If spill airshed and use the flow sensor measurement instead, then Dui Ying cost can increase by tens times than pressure transducer, obviously is not preferred option.Therefore should improve filtering membrane and survey stifled precision, avoid cost significantly to improve again, become a difficult problem of needing solution badly.
The 3rd drawback of this monitoring device is: source of the gas is by a reduction valve 2, the decompression back connects a plurality of gas outlets 1, cause a plurality of gas outlets 1 to give vent to anger simultaneously, even in the time of only need detecting a transfusion device, also must give vent to anger simultaneously in a plurality of gas outlets, on the one hand, wasted the energy, on the other hand, the operator has also been formed interference; Many during with transfusion device when measuring simultaneously, wherein one when big the leakage occurring, air-flow just lets out from this root, causes other several under-inflation, thereby causes testing result inaccurate; In addition, therefore the structure of this inflation only can arrange two gas outlets generally speaking owing to be difficult to guarantee the steady air current degree of a plurality of gas outlets, can't detect a plurality of transfusion devices simultaneously, has influenced the efficient that detects.
Summary of the invention
The purpose of this utility model is to solve the problems of the technologies described above, provide a kind of filtering membrane that can detect to break, can significantly improve filtering membrane and survey stifled precision, provide a kind of simultaneously and can satisfy the stable running simultaneously of a plurality of gas outlets, and the transfusion device that cost does not obviously rise leaks hunting, surveys apparatus and method stifled, the breakage of survey filtering membrane.The technical solution of the utility model is to be 201110377352.5 at number of patent application, and date of publication is to carry out improved technical scheme on the basis of Chinese utility model patent on June 13rd, 2012.
The utility model is taked following technical scheme:
That a kind of transfusion device leaks hunting, surveys is stifled, survey the device of filtering membrane breakage, comprise compressed gas source 6, described compressed gas source 6 is communicated with the one group of reduction valve 2 that is connected in parallel, described reduction valve 2 is communicated with each self-corresponding pressure transducer 4, described pressure transducer 4 is communicated with each self-corresponding gas outlet 1, and described pressure transducer 4 sends detected pressures to outside data acquisition equipment; Described compressed gas source also is communicated with solenoid valve 5, and described solenoid valve 5 is connected with clamp device 7, and described clamp device 7 can clamp transfusion device/unclamp.
Further, also comprise the alarm lamp of a pair of different colours, described a pair of alarm lamp is connected respectively with each pressure transducer, by flicker, the Chang Liang of a pair of alarm lamp, respectively following four kinds of situations is warned: serious gas leakage; Small gas leakage; The transfusion device line clogging; Filtering membrane breakage/pin lid comes off.
A kind of use above-mentioned transfusion device leak hunting, survey stifled, as to survey filtering membrane breakage device leak hunting, survey stifled, survey the method for filtering membrane breakage, comprise following process:
A) use clamp device 7 that transfusion device is clamped near an end of moulding pin, the transfusion device inflation inlet is inserted gas outlet 1 carry out the inflation first time, pressure transducer 4 passes to outside data acquisition equipment with pressure, the data acquisition equipment data of will leaking hunting are pointed out operating personnel by PLC and alarm lamp, finish and leak hunting;
B) unclamp clamp device 7, carry out the inflation second time simultaneously, after the stable gas pressure, pressure transducer passes to outside data acquisition equipment with this steady pressure, data acquisition equipment compares the normal pressure scope of this steady pressure and setting, and by PLC and alarm lamp operating personnel are pointed out, finish survey stifled, survey the filtering membrane breakage or the pin lid comes off.
The utility model is the many disadvantages that 201110377352.5 Chinese patent exists at existing application number, and it is improved.Its characteristics are:
At first, on the method for testing, in order to realize surveying the function of filtering membrane breakage and improve and survey stifled precision, carry out aeration twice, whether inflation is for the first time finished the test transfusion device and is leaked, inflation is for lasting air pressure is provided for the second time, after clamp device unclamps, the part air-flow flows out from filtering membrane, and after carrying out the inflation second time simultaneously, in transfusion device, form and compare a lower stable air pressure of inflation for the first time, the air pressure range of this air pressure with the standard of presetting compared, if the upper limit of this stable air pressure overgauge air pressure range illustrates that then transfusion device has stopped up, if this stable air pressure has then illustrated the filtering membrane breakage less than the lower limit of standard pressure scope.And prior art is only once inflated, and can only fall to survey stifled by the air pressure that clamp device moment is unclamped in measurement, and measuring accuracy is lower, and the duplicate measurements consistance is poor, and when especially the transfusion device volume was big, it was very big to fluctuate, and can not measure the filtering membrane breakage.
Secondly, on the measurement mechanism, owing to need carry out defuelling, if according to mode of the prior art, a reduction valve 2 only is set, this reduction valve 2 is communicated with a plurality of gas outlets, give birth to leakage or obstruction in case riches all the way, the air pressure fluctuation of all the other bypasses is very big, so air pressure can stablize inadequately, and the utility model will not have gas outlet, road 1 that a reduction valve 2 is set respectively, the problems referred to above have so been overcome, simultaneously, make that a plurality of gas outlets arranged side by side are set becomes possibility, has also saved source of the gas.
The beneficial effects of the utility model are:
1) improved greatly and leak hunting, survey stifled precision, especially the consistance of repeated test improves greatly.
2) whether feasible measurement filtering membrane is damaged, whether pin covers to come off becomes possibility.
3) cost is not significantly improved.
4) adopt digital-to-analog conversion to control the automaticity height automatically.
5) avoid the use traffic meter, obviously do not increase cost when enhancing product performance.
Description of drawings
Fig. 1 is the synoptic diagram of transfusion device.
The inflation mode synoptic diagram of Fig. 2 prior art.
Fig. 3 is the synoptic diagram of inflation mode of the present utility model.
Fig. 4 is that transfusion device of the present utility model leaks hunting, surveys, and air-flow stifled, that survey the device of filtering membrane breakage moves towards synoptic diagram.
Wherein, 1, the gas outlet, 2, reduction valve, 3, filtering membrane, 4, pressure transducer, 5, solenoid valve, 6, compressed gas source, 7, clamp device.
Embodiment
Below in conjunction with specific embodiment the utility model is further specified.
Referring to Fig. 3, Fig. 4, that a kind of transfusion device leaks hunting, surveys is stifled, survey the device of filtering membrane breakage, comprise compressed gas source 6, compressed gas source 6 is communicated with the one group of reduction valve 2 that is connected in parallel, and reduction valve 2 is communicated with each self-corresponding pressure transducer 4, and pressure transducer 4 is communicated with each self-corresponding gas outlet 1, each gas outlet 1 is controlled by gas filling valve separately and is given vent to anger, and pressure transducer 4 sends detected pressures to outside data acquisition equipment; Compressed gas source also is communicated with solenoid valve 5, and solenoid valve 5 is connected with clamp device 7, and clamp device 7 can clamp transfusion device/unclamp.
The alarm lamp that also comprises a pair of different colours, a pair of alarm lamp is connected respectively with each pressure transducer, by flicker, the Chang Liang of a pair of alarm lamp, respectively following four kinds of situations is warned: the serious gas leakage of green light flicker expression; The long bright small gas leakage of green light; The long bright expression transfusion device line clogging of red light; Blinking red lamp is represented not lid of filtering membrane breakage or pin lid.
A kind of above-mentioned transfusion device leaks hunting, surveys, and device stifled, that survey the filtering membrane breakage leaks hunting, surveys method stifled, the breakage of survey filtering membrane, comprises following process:
A) use clamp device 7 that transfusion device is clamped near an end of moulding pin, the transfusion device inflation inlet is inserted gas outlet 1 carry out the inflation first time, pressure transducer 4 passes to outside data acquisition equipment with pressure, the data acquisition equipment data of will leaking hunting are pointed out operating personnel by display screen and alarm lamp, finish and leak hunting;
B) unclamp clamp device 7, carry out the inflation second time simultaneously, after the stable gas pressure, pressure transducer 4 passes to outside data acquisition equipment with this steady pressure, data acquisition equipment compares the normal pressure scope of this steady pressure and setting, if the higher limit of this steady pressure overgauge pressure limit, represent that then woven hose or filtering membrane stop up, if this steady pressure is less than the lower limit of normal pressure scope, then represent the filtering membrane breakage, and by display screen and alarm lamp operating personnel are pointed out, finish survey stifled, surveying filtering membrane breakage or pin lid comes off.
Claims (2)
1. a transfusion device leaks hunting, surveys device stifled, the breakage of survey filtering membrane, comprises compressed gas source (6), it is characterized in that:
Described compressed gas source (6) is communicated with the one group of reduction valve (2) that is connected in parallel, described reduction valve (2) is communicated with each self-corresponding pressure transducer (4), described pressure transducer (4) is communicated with each self-corresponding gas outlet (1), and described pressure transducer (4) sends detected pressures to outside data acquisition equipment;
Described compressed gas source also is communicated with solenoid valve (5), and described solenoid valve (5) is connected with clamp device (7), and described clamp device (7) can clamp transfusion device/unclamp.
2. transfusion device as claimed in claim 1 leaks hunting, surveys device stifled, the breakage of survey filtering membrane, it is characterized in that: the alarm lamp that also comprises a pair of different colours, described a pair of alarm lamp is connected respectively with each pressure transducer, by flicker, the Chang Liang of a pair of alarm lamp, respectively following four kinds of situations are warned: serious gas leakage; Small gas leakage; The transfusion device line clogging; Filtering membrane breakage/pin lid comes off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320117184 CN203148637U (en) | 2013-03-14 | 2013-03-14 | Device detecting leakage, blockage and damaged filtering membrane of transfusion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320117184 CN203148637U (en) | 2013-03-14 | 2013-03-14 | Device detecting leakage, blockage and damaged filtering membrane of transfusion system |
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| Publication Number | Publication Date |
|---|---|
| CN203148637U true CN203148637U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320117184 Expired - Fee Related CN203148637U (en) | 2013-03-14 | 2013-03-14 | Device detecting leakage, blockage and damaged filtering membrane of transfusion system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134645A (en) * | 2013-03-14 | 2013-06-05 | 上海宝舜医疗器械有限公司 | Device and method for detecting leakage, blocking, and damage of filtering membrane of infusion apparatus |
| CN104634519A (en) * | 2013-11-08 | 2015-05-20 | 上海康德莱企业发展集团股份有限公司 | Leakage plugging detector for infusion sets |
| CN112857821A (en) * | 2020-12-24 | 2021-05-28 | 联合汽车电子有限公司 | Failure recognition device and failure recognition method for fuel distribution pipe assembly |
-
2013
- 2013-03-14 CN CN 201320117184 patent/CN203148637U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134645A (en) * | 2013-03-14 | 2013-06-05 | 上海宝舜医疗器械有限公司 | Device and method for detecting leakage, blocking, and damage of filtering membrane of infusion apparatus |
| CN104634519A (en) * | 2013-11-08 | 2015-05-20 | 上海康德莱企业发展集团股份有限公司 | Leakage plugging detector for infusion sets |
| CN112857821A (en) * | 2020-12-24 | 2021-05-28 | 联合汽车电子有限公司 | Failure recognition device and failure recognition method for fuel distribution pipe assembly |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20210314 |
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| CF01 | Termination of patent right due to non-payment of annual fee |